1x4 Retrofit Kits
These ERG Lighting Retrofit Kits are ideal for upgrading 1×4 fixtures to energy-saving LEDs. Easily installs in 5-10 minutes using your existing linear fluorescent fixtures. They deliver up to 5400 lumens of light and over 100 lumens per watt. 3000K, 4000K or 5000K CCT available. 100% Designed and Manufactured in the USA.